Home / 1,421,714.49-2,123,492.46-1,286,569.05

Finding the Fourth Proportional to 1,421,714.49, 2,123,492.46 and 1,286,569.05

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Solution

The fourth proportional to 1,421,714.49, 2,123,492.46 and 1,286,569.05 is: 1,921,637.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,714.49 : 2,123,492.46 = 1,286,569.05 : x
  2. Step 2: Convert to fraction form
    1,421,714.49/2,123,492.46 = 1,286,569.05/x
  3. Step 3: Cross multiply
    1,421,714.49x = 2,123,492.46 × 1,286,569.05
  4. Step 4: Simplify right side
    1,421,714.49x = 2,732,019,676,944.36
  5. Step 5: Solve for x
    x = 2,732,019,676,944.36/1,421,714.49
  6. Step 6: Final answer
    x = 1,921,637.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.